Patriot, In my stuff I run the mercron dextron 3, seems to work the best over the rest. Detergent and conditions all in one. Type f doesn't seem to clean as much. I also use the power service in the white jug. It works very well and have yet to be jelled up, if you do have a problem with jelling the is p.s. 911 in a red jug or there is pellet style (I don't remember the name of it) but that works very well if your jelled up. With the new soy based fuel also I like to run a half quart of (10-30 summer and 5-30 in winter) engine oil per 35 gallons of fuel. Seems to give it a little extra and a bit more mileage, and is better than the "soy shield" from Schaffers. Another thing that I have been seeing is if you don't put a lot of miles on you should dump in some algae eater (helps keep it down and things running and flowing like they should be.
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